Abstract:

In this study, the porous carbon was prepared through templated synthesis method using the natural zeolite as template and sugar as carbon source. The porous carbon was obtained at a carbonization temperature of 700oC with a weight ratio 1:1 for zeolite and sugar. The physical, structural and surface properties of the porous carbon were characterized with the scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), elemental analysis and nitrogen (N2) adsorption. The specific surface area and total pore volume of carbon were found as 412 m2/g and 0.5515 cm3/g, respectively. This carbon material was used for removal of Pb2+ ions from solution. The effects of initial pH, temperature and contact time on adsorption were studied. The maximum Pb2+ removal was observed at pH=5. The adsorption was reached to the equilibrium in 120 minutes. Various kinetic models were used for describing the adsorption kinetic and the pseudo-second order kinetic model showed well fit. Langmuir, Freundlich and Temkin isotherm models were applied to the experimental equilibrium data and Langmuir equation was found as best fitting isotherm. 

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